The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 2009
Filed:
Apr. 12, 2005
Yutaka Shibui, Kitasaku-gun, JP;
Hajime Matsumaru, Kitasaku-gun, JP;
Keita Kazuie, Kitasaku-gun, JP;
Yutaka Shibui, Kitasaku-gun, JP;
Hajime Matsumaru, Kitasaku-gun, JP;
Keita Kazuie, Kitasaku-gun, JP;
Citizen Holdings Co., Ltd., Nishitokyo-shi, Tokyo, JP;
Abstract
In a method of machining a work in a numerically controlled lathe, it is possible to reduce machining cost by shortening idle time at the time of switching and to enhance the lifetime by lessening a load on a feeding mechanism of a tool rest. After completion of the machining of a work W with a tool Ton one tool rest (), the one tool rest () is moved to a standby position B and, at the same time, the other tool rest () is moved from a standby position D and the feed speed of the other tool rest () is controlled such that the one and the other tool rests () simultaneously reach positions C and F preset between the work W and the standby positions B and D.